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Small animal disease surveillance

Small Animal Expert Group Veterinary Lead

Gillian Diesel SAEG lead

The Small Animal Expert Group (SAEG) veterinary lead is Gillian Diesel (07385 932174).

The SAEG was first established at the beginning of 2022, with the first meeting of the group held in January 2022. Gillian joined APHA in October 2021.

SAEG members

To support the SAEG veterinary lead, the group has representation from within APHA, including the One Health Team and the Surveillance, Epidemiology and Data Analysis team.

SAEG non-APHA members include representatives from:

Small animal surveillance

Many households in the UK own at least one pet animal, with dogs and cats being the most common. The shared environment and close proximity in which many owners live with their pets means that diseases of these species are not only animal health and welfare issues, but also pose potential public health risks.

The routine use of computer systems to record clinical records during small animal consultations provides an opportunity to rapidly collect and collate large volumes of clinical records for disease surveillance.

The Small Animal Veterinary Surveillance Network (SAVSNET) is a project based at the University of Liverpool that collects clinical records in real-time from participating veterinary practices and collects diagnostic test results from commercial veterinary diagnostic laboratories.

VetCompass, an epidemiological and surveillance programme at the Royal Veterinary College, London, collaborates with over 30% of UK veterinary clinics to share and explore anonymised clinical records across small animal, equine and farm animal species for research that extends the evidence base supporting improved animal health and welfare.

The data collated by both projects is being used for surveillance and research and both groups are represented on the SAEG. 

Surveillance for exotic worms and worm like parasites in imported and travelled dogs

APHA will carry out free of charge, morphological identification of suspected cases of Thelazia callipaeda, Dirofilaria repens and Linguatula serrata seen in practice.

APHA and ESCCAP UK & Ireland are collaborating to encourage diagnosis and reporting of these parasites and to map the distribution of cases being recorded in the UK. This will help to inform their distribution and prevalence in UK dogs, as well as helping to identify where autochthonous transmission may be occurring.

Instructions for submission and the accompanying questionnaire can be found at

Disease Information

Imported disease summaries for cats and dogs – August 2022